kottke.org posts about Steven Weinberg

Ulysses, by James Joyce, 1922. Yeah, it's a work of fiction, but as I argued a few years ago, Joyce was a more astute observer of the mind than anyone before or since. He exemplifies Noam Chomsky's dictum that we will always learn more about ourselves from literature than from science.

The Structure of Scientific Revolutions, Thomas Kuhn, 1962. This sneaky, subversive assault on conventional notions of scientific truth and progress triggered a revolution itself within the philosophy of science. Be sure to note where Kuhn compares scientists with drug addicts.

It turns out that particles already known to us are not enough to account for the mass of the hot matter in which the sound waves must have propagated. Fully five sixths of the matter of the universe would have to be some kind of "dark matter," which does not emit or absorb light. The existence of this much dark matter in the present universe had already been inferred from the fact that clusters of galaxies hold together gravitationally, despite the high random speeds of the galaxies in the clusters. So this is a great puzzle: What is the dark matter? Theories abound, and attempts are underway to catch ambient dark matter particles or remnants of their annihilation in detectors on Earth or to create dark matter in accelerators. But so far dark matter has not been found, and no one knows what it is.